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package com.mapbox.mapboxsdk.net;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;
import android.net.ConnectivityManager;
import android.net.NetworkInfo;
import android.support.annotation.NonNull;
import timber.log.Timber;
import com.mapbox.mapboxsdk.MapboxAccountManager;
import java.util.List;
import java.util.concurrent.CopyOnWriteArrayList;
/**
* Interface definition for a callback to be invoked when connectivity changes.
* Not public api.
*/
public class ConnectivityReceiver extends BroadcastReceiver {
private static ConnectivityReceiver INSTANCE;
/**
* Get or create the singleton instance
*/
public static synchronized ConnectivityReceiver instance(Context context) {
if (INSTANCE == null) {
//Register new instance
INSTANCE = new ConnectivityReceiver();
context.registerReceiver(INSTANCE, new IntentFilter("android.net.conn.CONNECTIVITY_CHANGE"));
//Add default listeners
INSTANCE.addListener(new NativeConnectivityListener());
}
return INSTANCE;
}
private List<ConnectivityListener> listeners = new CopyOnWriteArrayList<>();
private ConnectivityReceiver() {
}
/**
* @see BroadcastReceiver#onReceive(Context, Intent)
*/
@Override
public void onReceive(Context context, Intent intent) {
boolean connected = isConnected(context);
Timber.v("Connected: " + connected);
//Loop over listeners
for (ConnectivityListener listener : listeners) {
listener.onNetworkStateChanged(connected);
}
}
/**
* Add a listener to be notified
*
* @param listener the listener to add
*/
public void addListener(@NonNull ConnectivityListener listener) {
listeners.add(listener);
}
/**
* Remove a listener
*
* @param listener the listener to remove
*/
public void removeListener(@NonNull ConnectivityListener listener) {
listeners.remove(listener);
}
/**
* Get current connectivity state
*
* @param context current Context
* @return true if connected
*/
public boolean isConnected(Context context) {
Boolean connected = MapboxAccountManager.getInstance().isConnected();
if (connected != null) {
// Connectivity state overridden by app
return connected;
}
ConnectivityManager cm = (ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE);
NetworkInfo activeNetwork = cm.getActiveNetworkInfo();
return (activeNetwork != null && activeNetwork.isConnected());
}
}
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